Flex Ltd.'s (NASDAQ:FLEX) price-to-earnings (or "P/E") ratio of 20.5x might make it look like a sell right now compared to the market in the United States, where around half of the companies have P/E ratios below 18x and even P/E's below 10x are quite common. Although, it's not wise to just take the P/E at face value as there may be an explanation why it's as high as it is.

With its earnings growth in positive territory compared to the declining earnings of most other companies, Flex has been doing quite well of late. The P/E is probably high because investors think the company will continue to navigate the broader market headwinds better than most. You'd really hope so, otherwise you're paying a pretty hefty price for no particular reason.

If you'd like to see what analysts are forecasting going forward, you should check out our free report on Flex.

What Are Growth Metrics Telling Us About The High P/E?

In order to justify its P/E ratio, Flex would need to produce impressive growth in excess of the market.

Taking a look back first, we see that the company grew earnings per share by an impressive 83% last year. The latest three year period has also seen a 6.1% overall rise in EPS, aided extensively by its short-term performance. So we can start by confirming that the company has actually done a good job of growing earnings over that time.

Looking ahead now, EPS is anticipated to climb by 27% per annum during the coming three years according to the seven analysts following the company. With the market only predicted to deliver 10% per annum, the company is positioned for a stronger earnings result.

With this information, we can see why Flex is trading at such a high P/E compared to the market. Apparently shareholders aren't keen to offload something that is potentially eyeing a more prosperous future.

The Key Takeaway

While the price-to-earnings ratio shouldn't be the defining factor in whether you buy a stock or not, it's quite a capable barometer of earnings expectations.

We've established that Flex maintains its high P/E on the strength of its forecast growth being higher than the wider market, as expected. Right now shareholders are comfortable with the P/E as they are quite confident future earnings aren't under threat. Unless these conditions change, they will continue to provide strong support to the share price.

There are also other vital risk factors to consider before investing and we've discovered 2 warning signs for Flex that you should be aware of.

You might be able to find a better investment than Flex. If you want a selection of possible candidates, check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.